Gemstone



FIG. 1 is a front side elevational view of a gemstone in accordance with the present invention, wherein a rear side elevational view, a left side elevational view, and a right side elevational view are identical thereto;

FIG. 2 is a perspective view of the gemstone of FIG. 1;

FIG. 3 is a bottom plan view of the gemstone of FIG. 1; and,

FIG. 4 is a top plan view of the gemstone of FIG. 1. 

The ornamental design for a gemstone, as shown and described. 